Ulmus rubra (bark)

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=Botanical Voucher Specimen=
 
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=Organoleptic Characteristics=
 
=Organoleptic Characteristics=
  

Revision as of 03:12, 27 March 2014


Contents

Nomenclature

Ulmus rubra Muhl.   Ulmaceae  
Syn. Ulmus fulva Michx.  
Standardized common name (English): slippery elm

Botanical Voucher Specimen

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Ulmus rubra Tropicos 100123357 (S).jpg
Source: MOBOT, Tropicos.org[1]

Ulmus rubra Tropicos 100123358 (S).jpg
Source: MOBOT, Tropicos.org[2]

Organoleptic Characteristics

Macroscopic Characteristics

Microscopic Characteristics

High Performance Thin Layer Chromatographic Identification

AP-LOGO-Laboratories Crop - Copy.jpg
(thumbnail)
Ulmus rubra HPTLC ID - Natural Product Reagent + PEG-> UV 365 nm

Slippery Elm (bark) (Ulmus rubra)

Lane Assignments Lanes, from left to right (Track, Volume, Sample):

  1. 3 μL Ulmus rubra-1 (bark)
  2. 3 μL Ulmus rubra-2 (bark)
  3. 3 μL Ulmus rubra-3 (bark)
  4. 3 μL Ulmus rubra-4 (bark)
  5. 3 μL Ulmus rubra-4 (bark)
  6. 3 μL Ulmus rubra-5 (bark)
  7. 3 μL Ulmus rubra-6 (bark)
  8. 1 μL Rutin, Caffeic acid, Hyperoside, Chlorogenic Acid ~0.1% in CH3OH

Reference materials used here have been authenticated by macroscopic, microscopic &/or TLC studies according to the reference source cited below held at Alkemists Laboratories, Costa Mesa, CA. 

Stationary Phase Silica gel 60, F254, 10 x 10 cm HPTLC plates 

Mobile Phase ethyl acetate: glacial acetic acid: formic acid: water [10/1.1/1.1/2.4] 

Sample Preparation Method 0.3 g + 3 ml CH3OH sonicate/heat @ 50° C ~ 1 hr. 

Detection Method Natural Product Reagent + PEG-> UV 365 nm 

Reference see British Herbal Pharmacopoeia, 1996


Source: Elan M. Sudberg, Alkemist Laboratories [3]

Supplementary Information

Sources

  1. ↑ MOBOT, Tropicos.org http://www.tropicos.org/Image/100123357
  2. ↑ MOBOT, Tropicos.org http://www.tropicos.org/Image/100123358
  3. ↑ Elan M. Sudberg, Alkemist Laboratories http://www.alkemist.com
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